JPH0115194B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a key telephone control system in a telephone exchange.

Conventionally, when a telephone exchange accommodates key telephones with telephone keys compatible with service functions, a key telephone control device that controls a plurality of key telephones is simply connected to the main communication path network through a plurality of communication lines. . That is, there is no control means between the key telephone control device and the central control circuit of the exchange main body, and the control of the key telephone is independently controlled only by the key telephone control device, and the central control circuit of the exchange main body directly controls the key telephone. I hadn't done it.

Therefore, the key phone and the key phone control device have complicated circuit configurations, and the number of interconnecting cables increases, which impairs economic efficiency.Additionally, the key phone control device alone cannot provide services that are more diverse and sophisticated. In addition, the exchange process between a regular telephone and a key telephone was inconsistent, resulting in a lot of waste in terms of control.

The present invention accommodates key telephones in the main communication path network via subscriber circuits in the same way as ordinary telephones, and connects the key telephone control circuit that controls the key telephones group by group and the central control circuit of the exchange. A control information transfer path is provided between the control circuit and the main communication path network, and a control information transfer path is provided between the key telephone control information transfer circuit and the main communication path network for mutually transferring control information between the key telephone control circuits. To provide a key telephone control method in a telephone exchange that can solve the above problems by providing a key telephone control circuit and a key telephone control information transfer circuit through a main communication path network. It is something.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. In FIG. 1, the main channel network 100 may be either a space-division type or a time-division type channel, and the present invention can be implemented in the same way; however, the explanation will be given here as a space-division type channel network. key phone 130
The group of key telephones 140-14n is controlled by key telephone control circuit 150, and the group of key telephones 140-14n is controlled by key telephone control circuit 15n. Also,
The key telephones 130 to 13n and 140 to 14n each have a telephone key and display lamp corresponding to the service function, and the subscriber circuits 110 to 11n and 12
It is connected to the main channel network 100 via 0 to 12n. The key telephone control circuits 150 to 15n that control these key telephones in groups and the key telephone control information transfer circuit 210 that transfers control information between the key telephone control circuits 150 to 15n are connected to control information transfer paths 190 and 15n, respectively. 192, 193,
The key telephone control circuits 150 to 15n are further connected to the central control circuit 200 of the exchange through a control information transfer path 191. Now key phone 13
0, when control is required such as when making a normal call, answering, restoring, or when a telephone key corresponding to a service function is pressed, the key telephone 130 is controlled by transferred data as shown in FIG. 2, for example. Control information is sent to the control circuit 150.
In the key telephone control circuit 150, the central processing circuit 16
0 analyzes the control information using the control program and data stored in the storage circuit 170, and performs unique control of the key telephone that does not require control of the central control circuit 200 of the exchange main body or key telephone 1 in the same group.
31 to 13n are controlled by a control circuit 150. In addition, in the case of control over key telephones in other groups, that is, control that spans the divided groups, for example, in the case of control over the key telephone 140, control from a normal telephone as shown in FIG. The information transfer control circuit 180 transmits transfer data similar to the above to the central control circuit 200 via the control information transfer path 191. central control circuit 200
Then, the transfer data sent via the control information transfer path 191 is received by the information transfer control circuit 182, and the control information of this transfer data and the storage circuit 172 are received.
The control information transfer path 194 provided in the key telephone control information transfer circuit 210 and the key telephone 1 transfer control information between the key telephone control circuits based on the control program and data stored in the key telephone control circuit 210.
The control information transfer path 190 provided in the key telephone control circuit 150 that controls the main communication path network 1
00, and further control information transfer circuit 2
Key telephone control circuit 1 that controls the control information transfer path 193 provided in 10 and the key telephone 140
The central processing circuit 162 controls the main channel network 100 so as to similarly connect the control information transfer channel 192 provided in the channel 5n. After connecting such a communication path, the key telephone control circuit 150 transfers the transfer data as shown in FIG. 2 to the information transfer control circuit 180.
control information transfer paths 190, 192, 193,
194, main communication path network 100, key telephone control circuit 15 via key telephone control information transfer circuit 210
Send to n. In this control circuit 15n, a central processing circuit 161 controls the key telephone 140 based on the control information of the transfer data received by the information transfer control circuit 181 and the control program and data stored in the storage circuit 171. On the other hand, if the control information received by the key telephone control circuit 150 is analyzed and requires control by the central control circuit 200 of the exchange, transfer data is transmitted to the central control circuit 200 in the same manner as described above. In this control circuit 200, the central processing circuit 162 controls the main channel network 100 and the other party's telephone based on the control information of the transfer data received by the information transfer control circuit 182 and the control program and data stored in the storage circuit 172. It performs the same exchange processing as a normal telephone, such as control.

Furthermore, when controlling the incoming call connection from another telephone etc. to the key telephone 130, the central control circuit 200 transmits the same information as the control information for the ordinary telephone to the control information transfer path 191 by the information transfer control circuit 182, as described above. to the key telephone control circuit 150 which controls the key telephone 130 via. In this control circuit 150, a central processing circuit 160 receives control information similar to that for the ordinary telephone set received by an information transfer control circuit 180, and controls the key telephone set using a control program and data stored in a storage circuit 170. The information is converted into information to control the key telephone 130.

As explained above, according to the present invention, a key telephone is housed in the main communication channel network via a subscriber circuit like a normal telephone, and the key telephone is connected between the key telephone control circuit and the central control circuit of the exchange. A control information transfer path is provided between the control circuit and the main communication path network, and a control information transfer path is provided between the key telephone control information transfer circuit and the main communication path network for mutually transferring control information between the key telephone control circuits. The key telephone control circuit and the key telephone control information transfer circuit are connected via the main communication path network, and the key telephone control circuit is used to control the key telephone only by the key telephone control circuit. The key phone control circuit is divided into circuits similar to normal telephones, and control information is transferred between the key phone control circuit itself and between the key phone control circuits to perform unique control of the key phone. By integrating the exchange processing between the key telephone and the key telephone, the circuit configuration of the central control circuit of the exchange, the key telephone, and the key telephone control circuit can be simplified, and services that can span groups of key telephones can be simplified. This can be easily realized without increasing the load on the central control circuit of the exchange, and it is possible to easily cope with increasingly diversified and sophisticated service functions, and to improve the efficiency of the control form. In addition, as in this invention, by connecting and arranging a circuit for mutually transferring information between key telephone control circuits to the main communication path network, it is possible to selectively connect and use a plurality of key telephone control circuits, and to control the number of calls. This makes it possible to efficiently arrange equipment according to the requirements.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram showing one embodiment of the present invention, and FIG.
3 and 3 are diagrams showing an example of the format of transfer data in the same embodiment. 100...Main channel network, 110-11n, 12
0~12n...Subscriber circuit, 130~13n, 1
40~14n...key telephone, 150~15n...
... Key telephone control circuit, 160-162 ... Central processing circuit, 171-172 ... Memory circuit, 180
~182... Information transfer control circuit, 190~194
...Control information transfer path, 200...Central control circuit,
210...Key telephone control information transfer circuit.

Claims (1)

[Claims] 1 A key telephone set having a telephone key compatible with the service function is accommodated in the main communication path network via a subscriber circuit in the same way as a normal telephone set, and the key telephone set is divided into a plurality of groups, and a key telephone set control circuit is installed for each group. established,
A control information transfer path is provided between the key telephone control circuit and the central control circuit of the exchange and the main communication path network, and a key telephone control information transfer circuit that transfers control information between the key telephone control circuits is connected to the control information transfer circuit. The key telephone control circuit connects to the main communication path network via a transfer path, performs exchange processing necessary only for key telephone control, and transfers control information between the key telephone control circuits. A key phone control method characterized by using an information transfer circuit.